package com.hfi.restful.response;

import com.hfi.restful.exception.ErrorCode;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.MethodParameter;
import org.springframework.http.MediaType;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.server.ServerHttpRequest;
import org.springframework.http.server.ServerHttpResponse;
import org.springframework.web.bind.annotation.RestControllerAdvice;
import org.springframework.web.servlet.mvc.method.annotation.ResponseBodyAdvice;

/**
 *
 * @author ChangLiang
 * @date 2019/9/6
 */
@Configuration
public class UnifiedReturnConfig {

    @RestControllerAdvice("com.hfi.restful.web.controller")
    static class CommonResultResponseAdvice implements ResponseBodyAdvice<Object> {

        @Override
        public boolean supports(MethodParameter methodParameter, Class<? extends HttpMessageConverter<?>> aClass) {
            return true;
        }

        @Override
        public Object beforeBodyWrite(Object o, MethodParameter methodParameter, MediaType mediaType, Class<?
                extends HttpMessageConverter<?>> aClass, ServerHttpRequest serverHttpRequest,
                                      ServerHttpResponse serverHttpResponse) {
            if (o instanceof Response) {
                return o;
            }
            return new Response<>(ErrorCode.OK,o);
        }
    }
}
